HD 159868

Display orbital revolution around the star HD 159868
Imaginary Picture of Star HD 159868
Star Name : HD 159868
Alternate Name :
Star Distance (LY/pc): 180.5958 (LY) 55.3710 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.1300 (Rsun, estimated)
Stellar Mass (Msun): 1.1900 (Msun/observed) 1.1900 (Msun/estimated)
Spectral type : G5V
Metalicity : 0.0000
Absolute Magnitude : 3.52
Apparent Magnitude : 7.24
Right Ascension(RA) : 264.74802
Declination(DEC) : -43.14551
  • This is the HD 159868 . The star HD 159868 islocated about 180.6 light-years (55.4 pc) away from our Solar System.
  • The star HD 159868 has apparent magnitude of 7.2, with absolute magnitude of 3.5.
  • It is 1.2 times more massive and 2.1 times bigger compared with our Sun. The surface temperature is 5534 with its spectral types of G5V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 159868 b radius 1.202000 mass 2.218000 orbital distance 2.320000
  • Name of the 2 Planet HD 159868 c radius 1.269000 mass 0.768000 orbital distance 1.032000
    (Illustration of the HD 159868's Planetary System)



    The Star HD 159868 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.413 AU ( 211405375.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.953 AU ( 292217475.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.976 AU ( 445274764.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.380 AU ( 655241322.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 159868)



    Kopparapu's Recent Venus for Star HD 159868 distance : 1.486 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 159868 distance : 1.882 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 159868 distance : 1.817 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 159868 distance : 1.993 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 159868 distance : 3.346 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 159868 distance : 3.529 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 159868)



  • Original Kopparapu Recent Venus for Star HD 159868 distance : 1.481 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 159868 distance : 1.935 AU
  • Original Kopparapu Moist Greenhouse for Star HD 159868 distance : 1.960 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 159868 distance : 3.404 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 159868 distance : 3.540 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 159868)



    (Position in Stellar Map of star HD 159868 )



    (Zoomed position in Stellar Map of star HD 159868 (zoom level 3))

    (Synthetic Spectrum of star HD 80869*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102